Browsing South African National Veterinary Repository by Title

Browsing South African National Veterinary Repository by Title

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  • Feeding vitaminized peanut butter to rats to confirm chemical assays of vitamin A 
    Myburgh, S.J.; Du Toit, P.J. (Pretoria : The Government Printer, 1943)
    Positive results were obtained when vitaminized peanut butter was fed in small doses of 4.2 and 8.4 I.U's. of vitamin A per rat daily. Body weight increases served as criteria. For the same peanut butter, on chemical tests ...
  • Ferret cages 
    ARC-Onderstepoort Veterinary Research (1940)
    Photos of ferret cages and also a single cage box
  • Ferrets, for veterinary experimental work, in their cages 
    Unknown; Onderstepoort Veterinary Institute (South Africa) (2008-11-14)
    Ferrets were bred particularly when experimental work was being done in the 1950's for the development of a canine distemper vaccine as they are also susceptable to the virus (a member of the family Paramyxoviridae)
  • Fertility in rats immunized with steroid-free bovine follicular fluid 
    Sewani-Rusike, C.R.; Dakwa, C.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute ., 2000)
    Inhibin is a gonadal hormone that inhibits the release of follicle stimulating hormone (FSH) from the anterior pituitary gland. The objective of this study was to determine whether active immunization of male and female ...
  • Fertilization capacity of Boophilus decoloratus (Koch, 1844) (Acarina : Ixodidae) 
    Londt, J.G.H.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1976)
    Thirty individual Boophilus decoloratus (Koch, 1844) males were studied daily, some during the whole observation period of 37 days. Newly moulted males spent a mean of 3, 8 days (range 3- 6) on the host before mating. ...
  • Fever reactions in horses simulating horsesickness 
    Theiler, Arnold, Sir, 1867-1936; Transvaal Department of Agriculture (Pretoria: Government Printer and Stationery Office, 1909)
    Conclusions: The injection of two-mule Tzaneen virus protected against four-mule Tzaneen virus, but not completely against the exposure virus. The two-mule Tzaneen virus, the four-mule Tzaneen virus, and the exposure virus ...
  • The fibre fineness of South African Merino wool 
    Bosman, V.; Union of South Africa. Dept. of Agriculture; Du Toit, P.J. (Union of South Africa : Dept. of Agriculture, 1934)
    An analysis of one thousand South African Merino wool samples selected at random and involving the measurement of a quarter of a million fibres is described and fundamental characteristics are demonstrated. Fibre thickness ...
  • A field evaluation of Bacillus thuringiensis var. israelensis as a biological control agent for Simulium chutteri (Diptera: Nematocera) in the middle Orange River 
    De Moor, F.C.; Car, M.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1986)
    Bacillus thuringiensis Berliner var. israelensis de Barjac (Serotype H-14) (B.t.i.) at a concentration of 1,6 ppm/10 min and a toxicity of 1500 AAU/mg was tested against Simulium chutteri Lewis larvae in the Orange River ...
  • Field observations on the duration of immunity in cattle after vaccination against Anaplasma and Babesia species 
    Tjornehoj, K.; Lawrence, J.A.; Whiteland, A.P.; Kafuwa, P.T.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)
    In an outbreak of Babesia bovis in a large herd of Friesian x Malawi Zebu cattle, which occurred after an interruption of intensive dipping, clinical or fatal babesiosis occurred in 54/299 (18,1 %) animals which had never ...
  • A field outbreak in Ile-de-France sheep of a cardiotoxicosis caused by the plant Pachystigma pygmaeum (Schltr) Robyns (Rubiaceae) 
    Prozesky, Leon; Fourie, Niel; Neser, J.A.; Nel, P.W.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)
    A field outbreak of Pachystigma pygmaeum intoxication in sheep is described. Noteworthy clinical signs were: respiratory distress, apathy and subcutaneous oedema of mainly the head. Gross changes included cardiomegaly, ...
  • A field strain of Haemonchus contortus showing slight resistance to rafoxanide 
    Van Wyk, Jan Aucamp; Gerber, H.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    A field strain of H. contortus, already resistant to benzimidazole anthelmintics, was also found to be slightly resistant to rafoxanide. This is apparently the first report of resistance to rafoxanide in a field strain of ...
  • A field strain of Trichostrongylus colubriformis resistant to levamisole and morantel in South Africa 
    Van Wyk, Jan Aucamp; Bath, Gareth F.; Gerber, H.M.; Alves, Regina M.R.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)
    A strain of Trichostrongylus colubriformis from Nottingham Road, in Natal, was found to be solidly resistant to levamisole and morantel at the recommended dose levels. Untreated control sheep in fact harboured fewer worms ...
  • A field study of some nematode parasites of bovines in a semi-arid area, with special reference to their biology and possible methods of prophylaxis 
    Reinecke, R.K.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Pretoria : The Government Printer, 1960)
    Preliminary field investigations revealed the presence of Cooperia pectinata, C. punctata, Haemonchus placei, Oesophagostomum radiatum and Bunostomum phlebotomum as the most common parasites of bovines in the North Western ...
  • The Fiftieth Anniversary of the Onderstepoort Laboratories as a Veterinary Research Institute 
    Alexander, R.A.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1958)
  • The fine structure of developmental stages of Babesia caballi in the salivary glands of Hyalomma truncatum 
    Blouin, Edmour F.; De Waal, D.T.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1989)
    The development of Babesia caballi in the salivary glands of Hyalomma truncatum was studied at the electron microscopic level. Kinetes were first observed in the salivary glands of ticks on Day 2 of tick feeding and on ...
  • The fine structure of intra-erythrocytic stages of Babesia bigemina 
    Potgieter, F.T.; Els, H.J.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1977)
    The electron microscope was used to study the structure of merozoites, merozoites in the process of transformation to trophozoites, trophozoites, and the method of multiplication of B. bigemina. The merozoites were piriform ...
  • The fine structure of merozoites of Babesia bovis in the gut epithelium of Boophilus microplus 
    Potgieter, F.T.; Els, H.J.; Van Vuuren, A.S.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1976)
    Electron microscopic studies on merozoites of Babesia bovis in epithelial cells of the gut of Boophilus microplus revealed that the pellicle apparently consists of 3 membranes, and an osmiophilic layer intimately associated ...
  • First evidence of Anaplasma platys in Rhipicephalus sanguineus (Acari: Ixodida) collected from dogs in Africa 
    Sanogo, Y.O.; Inokuma, H.; Parola, P.; Brouqui, P.; Davoust, B.; Camicas, J-L.; Boomker, Jacob Diederik Frederik (Pretoria : Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the University of Pretoria, Faculty of Veterinary Science, 2003)
    A total of 27 ticks, comprising Rhipicephalus sanguineus (Latreille) (n = 21), Haemaphysalis leachi (Andouin) (n = 4) and Haemaphysalis paraleachi (Camicas, Hoogstraal & EI Kammah) (n = 2) were recovered from two clinically ...
  • First isolation of Campylobacter jejuni from the vaginal discharge of three bitches after abortion in South Africa 
    Odendaal, M.W.; De Cramer, Kurt Guido Mireille; Van der Walt, Martha L.; Botha, A.D.; Pieterson, P.M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1994)
    Campylobacter jejuni was isolated in pure culture from the vaginal discharge from three German Shepherd bitches after late-pregnancy abortions. The main clinical sign occurring in the bitches was a profuse and odourless ...
  • First report of annual ryegrass toxicity in the Republic of South Africa 
    Schneider, D.J.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1981)
    The occurrence of annual ryegrass toxicity (ARGT) in sheep and cattle is reported for the first time in South Africa. To date it has been diagnosed conclusively in South African Mutton Merino sheep on a farm in the Caledon ...